I do not know to have such a function, so I am here to ask questions.
I need the cursor can move in any position above the red box to display A, don't know if this function
I know use keyboard shortcuts to quickly move the cursor between the display.
not really the solution, but you can drag display A down to the centre of the edge of display B which may make it work better for you.
this will make the mouse move across them differently
Thank you very much for your answer。
Windows can be set by DisplayFusion this software achieve the result that I want
I think macOS should also can be achieved